a signal use resnet denoise in matlab

main.m
noisyImg = imread('noisy_image.png');
grayImg = rgb2gray(noisyImg);
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main.m
%Create a denoising network with default settings
resnetDenoise = denoisingResnet;
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main.m
options = trainingOptions('adam', ... %Optimizer
    'Epochs', 20, ... %Number of training epochs
    'MiniBatchSize', 128, ... %Mini-batch size
    'CheckpointPath', 'path/to/checkpoints', ... %Checkpoint directory
    'Plots', 'training-progress'); %Display training progress
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main.m
denoisedImg = denoiseImage(noisyImg, resnetDenoise, 'ExecutionEnvironment', 'cpu', 'Verbose', true);
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main.m
imwrite(denoisedImg, 'denoised_image.png');
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